I'm running the newest version of Calibre, and just got a new Kindle Fire (not HD). I can't send books to the device - I keep getting an error message saying that there was an error communicating with the device. I've never had any problems with my old Kindle. The lower left of the screen tells me that the device is connected. What instructions I've been able to find are written in "computer speak", and I don't understand what they're talking about. I LOVE Calibre, and I think I'll love the new Kindle, but if I can't get my books to it, I'm going to send it back.

I don't know what I did, but suddenly, I am able to send books without a problem. When I tried to send (in order to get the fail message), the material went to the device without a problem. Go figure. Thanks for responding to my plea for help.